Well, if Nikon can do updates, so can I ;~).
Yesterday I shipped version 1.01 of the Complete Guide to the Nikon Z8. All total there were about 100 changes and additions. Many were simply fixing a typo that wasn’t caught, but a few are meaningful additions, particularly in areas where I needed more time sleuthing out the merits of some functions, such as HEIF recording. Also, the supplemental files are all now available, as outlined in the section byThom Supplied Software in the book.
The server sent out automated email messages to the email you ordered the book from with your new link. If you didn’t see that in your In Box, check your Spam/Junk folder.